Question about Rinnai Desa Vent-Free Infrared Gas Heater: Vent-Free Infrared Gas Heater(18,000 BTU)

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My Martin Ventless Infrared Heater won't stay lit. what do i do?

The pilot will lite, then when you turn it on, it will go out after a couple of minutes. Sometime the pilot will go off and will not re-light until it has cooled. what is wrong?

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Therinnaiguy
  • 1420 Answers

SOURCE: gas heater

Mae, It sounds like you may need a new thermocouple and maybe your pilot needs cleaning. If you are mechanically inclined, you can remove the old thermocouple and take it to Home Depot or Lowe's an they can fit it to a new one. To clean the pilot, you will need a can of air used for electronic equipment. Remove the pilot assembly and shoot a stream of air through where the gas line was hooked to it. This will dislodge any debris caught in the orifice. Do not shoot the air from the pointed end as it will blow out the pilot orifice and you will never find it. Using a soft wire brush or stiff tooth brush, scrub all other pilot components and make sure there is no carbon build up an anything.

Hope this helps!

Posted on Nov 05, 2007

Buffalo12980
  • 625 Answers

SOURCE: wont run

check the flame detector it may be a millivolt generator or a flame rod feeding to an electronic circuit.

Posted on Nov 16, 2007

  • 193 Answers

SOURCE: INFRARED HEATER WILL NOT STAY ON. PILOT KEEPS GOING OUT AND UNIT

You need to blow out lint in pilot assembly or replace the pilots

Posted on Sep 29, 2009

  • 1 Answer

SOURCE: My ventless propane heating stove shuts off by itself

I have a Rinnai Ventless heater hooked up to a 20 lb propane cly with a Moble home type regulator in line, and when I light it the pilot light lights and stays on. When I turn it to the heat position the pilot light go's out and that it!

Posted on Nov 22, 2009

  • 2 Answers

SOURCE: Rinnai Tropic ventless heater. Pilot will light

found that the pilot tube had dust bunnys in mine so blew it out with a air can i had for the computer now the pilot light stays on just fine

Posted on Feb 09, 2010

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3 Answers

Pilot lite won't stay lit


Thermostat flame sensor. Do you see a little rod next to the pilot? That is what tells the main gas valve that the pilot is lit and it is safe to give gas. Easy swap, and you can usually just pick up a generic one.

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Burner won't light, pilot is burning just fine.


Once you get the pilot to light and stay lit did yall move the burner knob to the ON position? Is the temp knob all the way up?

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The pilot flame must touch (burn) the tip oqef the t-couple to hold the magnet in the gas value open.make sure the pilot orifice (hole) is clear.the pilot pressure (in the tube) is factory set full open & can only be adjusted down (less). Also check the gas **** didn't get closed or turned half way.? Assuming its not the t-couple. If all is good & it still won't stay on. Replace the gas value.!

Sep 20, 2011 | Heating & Cooling

1 Answer

Rheem 22V50F1 pilot won't stay lit. Changed thermo couple & it lit, ran then went out. Let it sit overnight & it lit, ran then went out. What next? p.s. The unit is 5 years old. Thanks


If pilot lights and flame is robust and clear blue, and pilot goes out later, then some suspects can be excluded: air in gas line, low gas pressure, thermocouple is overtightened (finger-tight + 1/4 turn), thermocouple not positioned correctly in the flame, dirty pilot tube.
If flame is yellowish and small: then clean pilot tube and combustion parts.
http://waterheatertimer.org/How-to-install-gas-water-heater.html#clean
Remaining suspects can include: air in gas line, low gas pressure, bad gas control valve, tight house so household vent fans pull air down water heater vent that blows out pilot, hot attic with inadequate ventilation, water dripping down vent.

Open following links to read troubleshoot resources.
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot

Aug 16, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

I have a Martin ventless gas log fireplace. I


Sometimes when you turn a gas heater off for some time, if the source tank has been turned off, the line will bleed the propane and the line will contain mostly air. This is especially true if the supply line is long. In order to light the pilot, you will have to hold the pilot lighting button down for a while (a full minute or longer, depending on the size and length of the supply line) before pure propane arrives at the pilot light jet. You should keep a lighted lighter at the jet so that when the gas arrives, the lighter will light it. After the pilot lights, you will have to keep the button pressed long enough for the thermocouple to get hot enough to set the pilot to stay on. When it is hot enough, you should be able to release the pressed lighting button and the pilot should stay on. If it does, you should be able to light the heater. If the pilot jet never lights, gas is not getting to the regulator. If the pilot will not stay lit after a period of time waiting for it to heat the thermocouple, the thermocouple or the regulator may be bad and need replacement. :-)

Jan 03, 2010 | Desa International Unvented Gas Space...

1 Answer

I have a Martin ventless gas log fireplace heater and can't get the pilot light to light. In the past, I've had problems keeping it lit, so I've kept pilot lit all year. The other day I successfully used...


You should the value there should be a pilot ajustment screw
some times it is hidden under another screw but should be close to where the pilot light line hooks to the gas value

Dec 12, 2009 | Desa International Unvented Gas Space...

2 Answers

Laars Lite 2 LG - pilot light will not stay lit. As long as you hold down the pilot light once it is lit it stays lit but when I turn the nob to the "on" position (release the pilot light button) the flame...


It sounds like a thermocouple has gone bad. this is a very common problem with gas powered things ie; water heaters, furnaces, hot tubs. The telltale sign is when you release the pilot light button it won't stay lit. This is a safety feature and is relatively inexpensive and easy to repair.

Aug 08, 2009 | Teledyne Laars Laars Lite 2 Pool Heater...

4 Answers

My ventless propane heating stove shuts off by itself


I have a Rinnai Ventless heater hooked up to a 20 lb propane cly with a Moble home type regulator in line, and when I light it the pilot light lights and stays on. When I turn it to the heat position the pilot light go's out and that it!

Jan 28, 2009 | Rinnai Desa Vent-Free Infrared Gas Heater:...

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